As the Bengals and Rams get ready to square off in Super Bowl LVI on Sunday, another football team is playing defense against a ransomware attack.

The San Francisco 49ers confirmed Sunday morning that they had fallen victim to a ransomware attack that encrypted files on their corporate IT network. The operators of the BlackByte ransomware listed the team as one of their victims on Saturday on a dark web “leak site,” where the group shames victims to try and force them into paying money via extortion, according to the Record.